APA (7e ed.) Bronvermelding

Grabel, G. (2012). Wealth opportunities in commercial real estate: Management, financing and marketing of investment properties. Wiley.

Chicago (17e ed.) Bronvermelding

Grabel, Gary. Wealth Opportunities in Commercial Real Estate: Management, Financing and Marketing of Investment Properties. Hoboken, N.J.: Wiley, 2012.

MLA (9e ed.) Bronvermelding

Grabel, Gary. Wealth Opportunities in Commercial Real Estate: Management, Financing and Marketing of Investment Properties. Wiley, 2012.